Vapor-burner.



No. 797,623. PATENTED AL IGQ22, 1905. P. B. STANLEY.

VAPOR BURNER.

APPLICATION nun NOV. 9.190s.

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UNITED STATES PATENT OFFICE.

VAPOR-BURNER.

Specification of Letters Patent.

Patented Aug. 22, 1905.

Application filed November 9, 1903. Serial No. 180,411.

To all whom, it nut/y concern.-

Be it known that I, FRANCIS E. STANLEY, a citizen of the United States,residing at Newton, in the county of Middlesex and State ofMassachusetts, have invented certain new and useful Improvements inVapor-Burners, of which the following is a specification.

My. invention relates to that class of apparatus in which a'vapor-burner has a main burner and a pilot-burner; and it consists inmeans whereby to supply the said burners independently with liquid fueland in certain details of construction of the apparatus, as fully setforth hereinafter and as illustrated in the accompanying drawings, inwhich Figure 1 represents one arrangement of the parts of an apparatusembodying my invention, some of the parts in section; and Fig. 2 is atransverse section through the burner.

In the drawings I have illustrated arrangements of the parts embodyingmy improvements in connection with the frame A of a motor-vehicle,although they may be used in diiferent arrangements for other purposes.there being a supply-tank D, a pressure-tank B, a supplemental tank C, aboiler E, and a burner F. These parts may be of different constructionsand of different arrangements, except as hereinafter provided.

As shown, the burner F has slits or openings at the top and amixing-tube 1, into which vapor is injected from a vaporizer 2 through anozzle 3, and a part of the main burner is partitioned off to receive asecond mixingtube 4, into which vapor from an independent vaporizer 5 isinjected through a nozzle 6 to constitute a section which forms apilotburner that will heat both the Vaporizers 2 and 5 when themain-burner section is not ignited. Pipes 7 and 8 lead to the twovaporizers and are provided with hand-valves 9 and 10, arranged inconvenient positions. The vaporizer of the main burner communicates,through a pipe 12, with the discharge-pipe of the pump G, the latterreceiving liquid fuel from the supply-tank D through a pipe 13, and withthe pipe 12 also communicates the pressure-tank B. into which liquid isforced from the pump Gr, compressing the air in the tank B, the valve 22being closed. The maximum pressure in the tank B depends upon theadjustment of an ordinary regulating or by-pass valve H, which alsocommunicates with the discharge-pipe of the pump and from which a pipe14 leads to the supplemental tank C, which will receive the liquiddischarged by the pump when the pressure in the tank B is such that theby-pass valve opens, these operations being as usual, except the use ofthe tank C, in this class of mechanism.

Insteadof providing a hand-pump for supplying the pressure-tank B beforestarting, as heretofore, I arrange the pressure-tank with such relationto the supply-tank that the liquid in the latter can pass into thepressuretank by gravity. Thus a pipe 16 connects the lower parts of thetanks D B and is provided with a cook or valve 17 and check-valve 18, sothat on opening the valve 17 any fluid in the tank D will pass into thetank B, the latter being provided with a port 19, through which air canescape as the fluid flows into the pressure-tank. As shown, the port 19is at the lower end of a pipe 20, extending into the pressure-tank tosuch a distance below the top of the latter as to form an air chamber,the pipe 20 communicating through a branch 21 with the air-space of thetank D and being provided with a hand-valve 22, which is closed afterthe tank B is supplied with oil. There is also a branch 23, closed by ahand-valve 24, adapted for connectiop t with the flexible pipe of anair-pump, and by means of which air may be forced into the pressure-tankB to secure an initial pressure. The communication with the upper partof the tank D permits the escape of air from the tank D (the valves 22and 24 being open) and insures that any liquid in the pipe 20 forcedupward. from the tank B shall be discharged into the tank D instead ofescaping and being lost, the air-valve being then closed. Thecommunication of the tank B with the tank D, however, is not otherwiseessential and may be omitted. It will be seen thatas the port 19 isarranged below the top of the pressu re-tank it is impossible for theliquid flowing by gravity into the pressure-tank to exceed thepredetermined level at which the port is arranged, so that when the pumpstarts in operation and additional liquid is forced into thepressure-tank there will be a closed space above the surface of theliquid, constituting an air-pressure chamber.

Heretofore in this class of apparatus the main burner and thepilotburner have been supplied from the pressure-tank with theobjections, among others, that when the vehicle is standing and the mainburner shut off the a pressure in the pressure-tank becomes graduallyreduced, so as not to operate effectively with the main burner on againstarting, while as the pressure-tank is of necessarily-limited capacityit is difiicult to maintain the pilotlight burning for any extendedlength of time. Another objection is that the opening in the nozzle ofthe pilot-burner when the latter is supplied under high pressure must bemade so small thatit is apt to become readily clogged by particles ofcarbon. To avoid these objections, I supply the pilot-burner from thesupplemental tank C, the liquid in which may be under very littlepressure, or, as shown, the said tank may be arranged at such a heightthat the liquid will pass to the pilot-burner by gravity alone. By thisarrangement I am enabled to make use of a supplemental tank of anydesired capacity that will keep the pilotburner in action for many hourswithout reducing the pressure in the tank B, which supplies the mainburner, and I can make use of a nozzle for. the pilot-burner having amuch larger bore than would otherwise be employed that will permit thepassage of small parti- (3%68 of carbon and which has little liabilityto 0 0g.

The tankC may besupplied in any suitable manner; but, as beforedescribed, may be in communication with "the discharge-pipe 14., leadingfrom the regulating valve H, and may have a neck provided with a plug26, through which it may be filled in the first instance.

Inasmuch as the liquid discharged through the pipe 14 in the ordinaryoperations of the machine will exceed the capacity of the tank C anddoes not flow of necessity regularly but intermittently, Iinsure apractically uniform supply of liquid in the tank C by providing thelatter with an overflow-port 27 near the top, which communicates withthe return branch 28 of the by-pass pipe leading back to thesupply-tank. As shown, the pipe 28 extends into the tank (J, with theport 27 at the upper end.

Without limiting myself to the precise con struction and arrangementshown, I claim as invention-- 1. The combination with a vapor-burner, ofa supply-tank, a pressure-tank arranged on a level below that of thesupply-tank, connections whereby the contents of the supply-tank may becaused to flow by gravity to the pressure-tank, means to prevent areverse flow, a pump connected to receive liquid from the supply-tankand discharge it into the pressure-tank, and a conduit having a portarranged to limit the upward flow of liquid in the pressure-tank andcommunicating with an inlet adapted to be connected with an airpump,substantially as set forth.

2. The combination with a vapor-burner, of a supply-tank,a pressure-tankcommunicating vith the supply-tank at both the top and bottom andarranged on a level below that of the supply-tank, whereby thepressure-tank may be supplied by gravity from the supply-tank,

a pump connected to receive liquid from the supply-tank and discharge itinto the pressure-tank, a conduit having a port arranged to limit theupward flow of liquid in the pressure-tank and communicating with aninlet adapted to be connected with an air-pump, and means for closingthe communication between the tanks at both top and bottom,substantially as set forth.

3. The combination with the main and pilot burners of a vapor-burner, ofa supply-tank, a pump communicating with said tank and main burner, areturn or by-pass pipe extending around the pump and having areliefvalve, and a supplemental tank in the line of the bypass pipe,said latter tank communieating with the pilot-burner to supply thelatter, substantially as set forth.

4. The combination with the main and pilot burners of a vapor- 'iurner,of a supply-tank, a pump communicating with said tank and main burner, areturn or by-pass pipe extending around the pump and having areliefvalve, and a supplemental tank in the line of the by-pass pipe,said latter tank arranged at an elevation to supply the pilot-burner bygravity, substantially as set forth.

5. The combination with the main and pilot burners of a vapor-burner, ofa supply-tank, a pump communicating with said tank and main burner, areturn or by-pass pipe extending around the pump and having areliefvalve, and a supplemental tank in the line of the by-pass pipe,said latter tank arranged above and communicating with the pilotburner,and the return-section of the by-pass pipe extending upward to near thetop of the supplemental tank, substantially as set forth.

6. The combination with the vaporburner and supply-tank, of apressure-tank in communication with the burner-supply pipe, and arrangedto receive liquid fuel by gravity from the supply-tank, through achannel provided with a cock, a pipe connecting the upper portions ofthe two tanks and provided with a valve, and a pump, receiving fuel fromthe supply-tank and communicating with and maintaining pressure in thepressure-tank, substantially as set forth.

7. The combination with the va1' or-burner, and supply-tank of apressure-tank in communication with the burner-supply pipe, and arrangedto receive liquid fuel by gravity from the supply-tank, through achannel provided with a cook, a pipe connecting the upper portions ofthe two tanks extending to a point below the top of the pressure-tank,and provided with a valve, and means for securing and maintainingpressure in the pressure-tank, substantially as set forth.

8. The combination of the main and pilot burners of a vapor-burner, asupply-tank, a pump communicating with said tank and main burner, arelief-valve arranged to open under excessive pressure from the pump,and a supma l plemental tank receiving the liquid fuel passing from therelief-valve and arranged above and communicating with the pilot-burner,substantially as set forth.

9. The combination of the main and pilot burners of a vapor-burner, asupply-tank, a pump communicating with said tank and main burner, arelief-valve arranged to open under excessive pressure from the pump,-and a supplemental tank receiving the liquid fuel passing from therelief-valve and arranged above and communicating with the pilot-burnerand also communicating with the supply tank through a port near the topof the supple mental tank, substantially as set forth.

10. The combination of the main and pilot burners of a vapor-burner, asupply-tank, a pump communicating with said tank and main burner, arelief-valve arranged to open under excessive pressure from the pump, asupplemental tank receiving the liquid fuel passing from therelief-valve and arranged above and communicating with the pilot-burner,and a pressure-tank communicating With the pump and with the pipeleading to the main burner, substantially as set forth.

11. The combination of the main and pilot burners of avapor-burner, asupply-tank, a pump communicating with said tank and main burner, arelief-valve arranged to open under excessive pressure from the pump, asupplemental tank receiving the liquid fuel passing from therelief-valve and arranged above and communicating With the pilot-burner,a pressure-tank communicating with the pump and with the pipe leading tothe main burner, and hand-controlled valves controlling the flow fromthe supplemental and pressure tanks to the burners, substantially as setforth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FRANCIS E. STANLEY. Witnesses:

J. W. BAcoN, J. H. GILKEY.

